﻿<!DOCTYPE html><html><head><meta charset="utf-8" /><style>html,body{height:100%;width:100%;padding:0;margin:0}body{display:flex;justify-content:center;align-items:center;flex-direction:column}</style></head><body> <img alt="" src="./cat.jpg" /><h1> Not authorized. 缺乏授权。</h1></body></html>